/* 햄찍이 카카오톡 챗봇 랜딩 — 디자인 시스템 (vanilla)
   톤: 우리의지에이 햄찍이 따뜻한 오렌지 · 친근한 존댓말 */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  --ink: #1f2430;
  --ink-2: #56606f;
  --ink-3: #98a1b0;
  --bg: #fffaf4;
  --bg-2: #fff3e6;
  --surface: #ffffff;
  --brand: #f97316;
  --brand-2: #fb923c;
  --brand-600: #ea580c;
  --brand-50: #fff3e6;
  --gold: #f59e0b;
  --line: rgba(31, 36, 48, 0.08);
  --shadow-1: 0 1px 2px rgba(31,36,48,.04), 0 8px 22px -8px rgba(31,36,48,.10);
  --shadow-2: 0 14px 40px -14px rgba(31,36,48,.20);
  --shadow-brand: 0 16px 38px -14px rgba(249,115,22,.55);
  --radius: 22px;
  --radius-sm: 14px;
  --sans: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
b { font-weight: 700; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* FX 초기 숨김 (라이브러리 로드 후 GSAP가 노출, 3.5s 백스톱) */
html.fx [data-anim] { opacity: 0; }

/* 앵커(#features = /명령어 카드 링크, #commands = 네비) — sticky 네비 오프셋 보정 */
#top, #commands, #features, #demo, #play, #install { scroll-margin-top: 76px; }
.anchor { position: absolute; }

/* 공통 섹션 헤더 */
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.eyebrow {
  display: inline-block; font-family: var(--mono); font-size: 12px; font-weight: 700;
  letter-spacing: .18em; color: var(--brand-600); background: var(--brand-50);
  padding: 6px 13px; border-radius: 999px; margin-bottom: 16px;
}
.sec-head h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: -.03em; line-height: 1.18; }
.sec-head p { margin-top: 12px; color: var(--ink-2); font-size: 16px; }

/* 버튼 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 16px;
  cursor: pointer; border: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--brand-2), var(--brand-600)); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { transform: translateY(-2px) scale(1.02); }
.btn-ghost { background: #fff; color: var(--brand-600); border: 1.5px solid #ffd7b0; box-shadow: var(--shadow-1); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--brand); }
.btn-light { background: #fff; color: var(--brand-600); box-shadow: 0 10px 26px -10px rgba(0,0,0,.3); }
.btn-light:hover { transform: translateY(-2px); }

/* ════════════ NAV ════════════ */
.nav { position: sticky; top: 0; z-index: 100; transition: background .25s, box-shadow .25s, backdrop-filter .25s; }
.nav.scrolled { background: rgba(255,250,244,.82); backdrop-filter: saturate(1.4) blur(12px); box-shadow: 0 1px 0 var(--line); }
.nav-inner { max-width: 1140px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.nav-logo img { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 8px 14px; border-radius: 10px; font-weight: 600; font-size: 15px; color: var(--ink-2); transition: color .15s, background .15s; }
.nav-links a:hover { color: var(--brand-600); background: var(--brand-50); }
.nav-cta { background: var(--ink); color: #fff !important; }
.nav-cta:hover { background: var(--brand-600) !important; color: #fff !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .2s; }
.nav-toggle.on span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.on span:nth-child(2) { opacity: 0; }
.nav-toggle.on span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ════════════ HERO ════════════ */
.hero { position: relative; overflow: hidden; background: radial-gradient(120% 100% at 80% 0%, #fff6ea 0%, #fffaf4 55%, #fff3e6 100%); }
.hero-particles { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-glow { position: absolute; top: -20%; right: -10%; width: 60vw; height: 60vw; max-width: 720px; max-height: 720px;
  background: radial-gradient(circle, rgba(251,146,60,.20), transparent 62%); filter: blur(10px); z-index: 0; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; padding: 74px 24px 96px; }
.hero-copy { max-width: 560px; }
.hero-badge { display: inline-block; font-size: 14px; font-weight: 700; color: var(--brand-600);
  background: #fff; border: 1px solid #ffe0c2; padding: 7px 15px; border-radius: 999px; box-shadow: var(--shadow-1); margin-bottom: 22px; }
.hero-title { font-size: clamp(34px, 6vw, 60px); font-weight: 800; letter-spacing: -.04em; line-height: 1.08; }
.hero-title .grad { background: linear-gradient(120deg, var(--brand-2), var(--brand-600) 60%, var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-typed-wrap { margin-top: 18px; font-size: clamp(17px, 2.4vw, 21px); font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.hero-typed { color: var(--brand-600); }
.hero-typed-tail { color: var(--ink); }
.only-mobile { display: none; }
.hero-sub { margin-top: 14px; color: var(--ink-2); font-size: 17px; line-height: 1.7; max-width: 460px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chip { font-size: 13.5px; font-weight: 600; color: var(--ink-2); background: #fff; border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px; box-shadow: var(--shadow-1); }
.chip b { color: var(--brand-600); font-weight: 800; margin-right: 3px; }

.hero-art { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-art-ring { position: absolute; width: min(78%, 380px); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.7), rgba(255,237,213,.55) 55%, transparent 72%);
  box-shadow: 0 30px 80px -30px rgba(249,115,22,.5); }
.hero-mascot { position: relative; width: min(86%, 400px); height: auto; filter: drop-shadow(0 26px 40px rgba(214,90,20,.28));
  animation: float 4.2s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }

.hero-wave { position: absolute; left: 0; right: 0; bottom: 0; height: 80px; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, transparent, var(--bg)); }

/* ════════════ STATS ════════════ */
.stats { background: linear-gradient(135deg, var(--brand-2), var(--brand-600)); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 40px 24px; text-align: center; }
.stat-v { font-size: clamp(26px, 4vw, 40px); font-weight: 800; color: #fff; letter-spacing: -.02em; line-height: 1.1; }
.stat-l { margin-top: 6px; font-size: 14px; font-weight: 600; color: rgba(255,255,255,.85); }

/* ════════════ COMMANDS ════════════ */
.commands { padding: 84px 0; background: var(--bg); }
.cmd-tabs { display: flex; gap: 9px; overflow-x: auto; padding: 6px 4px 14px; margin: 0 -4px 8px; scrollbar-width: none; scroll-snap-type: x proximity; }
.cmd-tabs::-webkit-scrollbar { display: none; }
.cmd-tab {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px; padding: 11px 16px; border-radius: 14px;
  background: #fff; border: 1.5px solid var(--line); cursor: pointer; font-family: var(--sans);
  font-size: 14.5px; font-weight: 700; color: var(--ink-2); box-shadow: var(--shadow-1);
  transition: transform .18s, border-color .18s, color .18s, background .18s; scroll-snap-align: center;
}
.cmd-tab:hover { transform: translateY(-2px); color: var(--ink); }
.cmd-tab.active { color: #fff; background: var(--accent, var(--brand)); border-color: transparent;
  box-shadow: 0 12px 26px -10px color-mix(in srgb, var(--accent, var(--brand)) 70%, transparent); }
.cmd-tab-e { font-size: 17px; }
.cmd-tab-n { font-family: var(--mono); font-size: 11.5px; font-weight: 700; padding: 2px 7px; border-radius: 999px;
  background: rgba(31,36,48,.06); color: var(--ink-3); }
.cmd-tab.active .cmd-tab-n { background: rgba(255,255,255,.25); color: #fff; }

.cmd-grid { margin-top: 12px; }
.cmd-cat-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.cmd-cat-ic { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; font-size: 25px;
  border-radius: 14px; background: color-mix(in srgb, var(--accent, var(--brand)) 12%, #fff); box-shadow: var(--shadow-1); }
.cmd-cat-label { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.cmd-cat-sub { font-size: 14px; color: var(--ink-3); margin-top: 1px; }

.cmd-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(252px, 1fr)); gap: 14px; }
.cmd { display: flex; gap: 14px; padding: 18px 18px; background: var(--surface); border: 1.5px solid var(--line);
  border-radius: 18px; box-shadow: var(--shadow-1); transition: transform .2s, box-shadow .2s, border-color .2s;
  animation: cmd-pop .42s cubic-bezier(.16,1,.3,1) both; }
@keyframes cmd-pop { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }
.cmd:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent, var(--brand)) 55%, transparent);
  box-shadow: 0 16px 34px -16px color-mix(in srgb, var(--accent, var(--brand)) 55%, transparent); }
.cmd-e { font-size: 28px; line-height: 1.1; flex-shrink: 0; filter: drop-shadow(0 4px 6px rgba(249,115,22,.16)); transition: transform .25s; }
.cmd:hover .cmd-e { transform: scale(1.15) rotate(-6deg); }
.cmd-body { min-width: 0; }
.cmd-n { font-size: 16px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.cmd-c { display: inline-block; margin: 7px 0 8px; font-family: var(--mono); font-size: 12.5px; font-weight: 700;
  color: var(--brand-600); background: linear-gradient(180deg, #fff7ee, #fff1e2); padding: 4px 11px; border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(234,88,12,.18); word-break: break-all; }
.cmd-d { font-size: 13.8px; color: var(--ink-2); line-height: 1.6; word-break: keep-all; }
.cmd-more { margin-top: 22px; text-align: center; font-size: 14.5px; color: var(--ink-2);
  background: color-mix(in srgb, var(--accent, var(--brand)) 7%, #fff); border: 1px dashed color-mix(in srgb, var(--accent, var(--brand)) 35%, transparent);
  padding: 14px 18px; border-radius: 16px; }
.cmd-more b { color: var(--accent, var(--brand-600)); }
.cmd-noscript { text-align: center; color: var(--ink-2); margin-top: 20px; }

/* ════════════ 그룹형 명령 버튼 (RPG 등 명령 많은 테마) ════════════ */
.cmd-grp { margin-bottom: 22px; }
.cmd-grp:last-of-type { margin-bottom: 0; }
.cmd-grp-t { font-size: 14.5px; font-weight: 800; letter-spacing: -.01em; color: var(--ink);
  margin: 0 2px 11px; padding-bottom: 8px; border-bottom: 1.5px solid color-mix(in srgb, var(--accent, var(--brand)) 22%, var(--line)); }
.cmd-btns { display: grid; grid-template-columns: repeat(auto-fill, minmax(208px, 1fr)); gap: 9px; }
.cmd-btn { display: flex; align-items: center; gap: 11px; text-align: left; width: 100%; cursor: default;
  padding: 11px 13px; background: var(--surface); border: 1.5px solid var(--line); border-radius: 13px;
  box-shadow: var(--shadow-1); transition: transform .16s, box-shadow .16s, border-color .16s;
  animation: cmd-pop .38s cubic-bezier(.16,1,.3,1) both; }
.cmd-btn:hover { transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent, var(--brand)) 55%, transparent);
  box-shadow: 0 12px 26px -16px color-mix(in srgb, var(--accent, var(--brand)) 60%, transparent); }
.cmd-btn-c { flex-shrink: 0; font-family: var(--mono); font-size: 12px; font-weight: 800;
  color: var(--accent, var(--brand-600)); background: color-mix(in srgb, var(--accent, var(--brand)) 10%, #fff);
  padding: 5px 9px; border-radius: 9px; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent, var(--brand)) 24%, transparent);
  white-space: nowrap; }
.cmd-btn-x { display: flex; flex-direction: column; min-width: 0; gap: 1px; }
.cmd-btn-n { font-size: 13.5px; font-weight: 800; letter-spacing: -.01em; color: var(--ink); line-height: 1.25; }
.cmd-btn-d { font-size: 11.8px; color: var(--ink-3); line-height: 1.4; word-break: keep-all; }

/* ════════════ DEMO (휴대폰) ════════════ */
.demo { padding: 84px 0; background: linear-gradient(180deg, #fff3e6, var(--bg)); }
.demo-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin-bottom: 34px; }
.chat-tab { padding: 10px 18px; border-radius: 999px; font-family: var(--sans); font-size: 14px; font-weight: 700;
  cursor: pointer; border: 1.5px solid var(--line); background: #fff; color: var(--ink-2); box-shadow: var(--shadow-1);
  transition: transform .18s, background .18s, color .18s, box-shadow .18s; }
.chat-tab:hover { transform: translateY(-2px); color: var(--brand-600); }
.chat-tab.active { background: linear-gradient(135deg, var(--brand-2), var(--brand-600)); color: #fff; border-color: transparent; box-shadow: var(--shadow-brand); }

.phone { max-width: 392px; margin: 0 auto; background: linear-gradient(160deg, #2a2f3a, #161a22); border-radius: 42px;
  padding: 12px; box-shadow: 0 40px 80px -28px rgba(15,23,42,.5), 0 0 0 1px rgba(0,0,0,.04); position: relative; }
.phone::before { content: ''; position: absolute; top: 18px; left: 50%; transform: translateX(-50%); width: 78px; height: 5px;
  background: rgba(255,255,255,.12); border-radius: 3px; z-index: 2; }
.phone-screen { background: linear-gradient(180deg, #fffaf3, #fff3e6); border-radius: 32px; overflow: hidden; }
.phone-bar { display: flex; align-items: center; gap: 10px; padding: 18px 20px 15px; font-weight: 800; font-size: 15px;
  color: #fff; background: linear-gradient(135deg, var(--brand-2), var(--brand-600)); }
.phone-ava { font-size: 20px; }
.chat-screen { display: none; flex-direction: column; gap: 10px; padding: 18px; min-height: 392px;
  background: radial-gradient(ellipse 60% 40% at 50% 0%, #fff3e0, transparent 70%); }
.chat-screen.active { display: flex; animation: chat-in .4s cubic-bezier(.16,1,.3,1); }
@keyframes chat-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.msg { max-width: 86%; padding: 11px 15px; font-size: 13.7px; line-height: 1.6; white-space: pre-line; word-break: keep-all; }
.msg.me { align-self: flex-end; background: linear-gradient(135deg, #fde68a, #fbbf24); color: #1f2430;
  border-radius: 18px 18px 6px 18px; font-weight: 500; box-shadow: 0 4px 12px rgba(251,191,36,.3); }
.msg.bot { align-self: flex-start; background: #fff; color: #3a4452; border-radius: 18px 18px 18px 6px; box-shadow: var(--shadow-1); }

/* ════════════ AUDIENCE ════════════ */
.audience { padding: 84px 0; background: var(--bg); }
.aud-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.aud-card { display: flex; gap: 16px; align-items: flex-start; padding: 24px; background: var(--surface);
  border: 1.5px solid var(--line); border-radius: 20px; box-shadow: var(--shadow-1); transition: transform .2s, box-shadow .2s; }
.aud-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.aud-e { font-size: 30px; flex-shrink: 0; }
.aud-q { font-size: 17px; font-weight: 800; letter-spacing: -.02em; }
.aud-a { margin-top: 5px; color: var(--brand-600); font-weight: 600; font-size: 15px; }

/* ════════════ PLAYGROUND (놀이터) ════════════ */
.play { padding: 36px 0 84px; background: var(--bg); }
.play-card { display: grid; grid-template-columns: 1.25fr .9fr; align-items: center; gap: 36px;
  background: linear-gradient(135deg, #fb923c, #ea580c); border-radius: 30px; padding: 46px 48px;
  box-shadow: var(--shadow-brand); position: relative; overflow: hidden; }
.play-card::before { content: ''; position: absolute; right: -70px; top: -70px; width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255,255,255,.20), transparent 66%); pointer-events: none; }
.play-copy { color: #fff; position: relative; z-index: 1; }
.play-copy h2 { font-size: clamp(24px, 3.4vw, 35px); font-weight: 800; letter-spacing: -.03em; line-height: 1.2; color: #fff; }
.play-copy > p { margin-top: 12px; color: rgba(255,255,255,.93); font-size: 16px; line-height: 1.7; max-width: 480px; }
.play-btn { margin-top: 24px; font-size: 17px; padding: 15px 32px; }
.play-url { margin-top: 13px !important; font-family: var(--mono); font-size: 13px; color: rgba(255,255,255,.82) !important; }
.play-qr { text-align: center; position: relative; z-index: 1; }
.play-qr-inner { background: #fff; border-radius: 22px; padding: 16px; display: inline-block; box-shadow: 0 22px 44px -16px rgba(0,0,0,.38); }
.play-qr-inner img { display: block; width: 190px; height: 190px; border-radius: 8px; }
.play-qr > p { margin-top: 15px; color: #fff; font-weight: 700; font-size: 14px; }

/* ════════════ INSTALL ════════════ */
.install { padding: 88px 0; background: linear-gradient(135deg, #fb8a3c, #ea580c); }
.sec-head.light h2, .sec-head.light p { color: #fff; }
.sec-head.light p { color: rgba(255,255,255,.9); }
.eyebrow.on-dark { background: rgba(255,255,255,.16); color: #fff; }
.install-note { margin-top: 10px; font-size: 14px; color: rgba(255,255,255,.92) !important; }
.install-note b { color: #fff; }
.install-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 880px; margin: 0 auto; }
.install-card { background: rgba(255,255,255,.12); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.22);
  border-radius: 22px; padding: 28px; color: #fff; }
.install-card-h { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.install-ic { font-size: 30px; }
.install-card-h h3 { font-size: 21px; font-weight: 800; }
.install-lead { font-weight: 800; font-size: 16px; }
.install-desc { margin-top: 6px; font-size: 14.5px; color: rgba(255,255,255,.9); line-height: 1.65; }
.install-list { list-style: none; margin-top: 18px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.22); }
.install-list li { font-size: 13.5px; color: rgba(255,255,255,.92); padding: 4px 0 4px 22px; position: relative; }
.install-list li::before { content: '✓'; position: absolute; left: 0; font-weight: 800; color: #fff; }
.install-foot { text-align: center; margin-top: 34px; }
.install-foot p { color: rgba(255,255,255,.92); font-size: 16px; margin-bottom: 16px; }

/* ════════════ FAQ ════════════ */
.faq { padding: 88px 0; background: var(--bg); }
.faq-inner { max-width: 720px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--surface); border: 1.5px solid var(--line); border-radius: 18px; overflow: hidden;
  transition: box-shadow .25s, border-color .25s; }
.faq-item[open] { border-color: #ffd0a8; box-shadow: var(--shadow-2); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; cursor: pointer;
  list-style: none; padding: 20px 22px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q { font-size: 16.5px; font-weight: 700; letter-spacing: -.02em; }
.faq-mark { position: relative; width: 22px; height: 22px; flex-shrink: 0; }
.faq-mark::before, .faq-mark::after { content: ''; position: absolute; top: 50%; left: 50%; width: 12px; height: 2.5px;
  background: var(--brand-600); border-radius: 2px; transform: translate(-50%,-50%); transition: transform .28s; }
.faq-mark::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-item[open] .faq-mark::after { transform: translate(-50%,-50%) rotate(0); opacity: 0; }
.faq-a { padding: 0 22px 22px; color: var(--ink-2); line-height: 1.8; font-size: 15px; }
.faq-a b { color: var(--brand-600); background: linear-gradient(180deg, transparent 60%, rgba(253,186,116,.4) 60%); padding: 0 2px; }

/* ════════════ FOOTER ════════════ */
.footer { background: #1b1f29; color: #98a1b0; padding: 48px 0; text-align: center; }
.footer-mascot { width: 46px; height: 46px; margin: 0 auto 14px; }
.footer-made { font-size: 16px; color: #e6e9ee; font-weight: 700; }
.footer-made span { color: var(--brand-2); }
.footer-copy { font-size: 13px; margin-top: 6px; }
.footer-link { display: inline-block; margin-top: 14px; font-size: 14px; color: #98a1b0; transition: color .15s; }
.footer-link:hover { color: var(--brand-2); }

/* ════════════ KAKAO FAB ════════════ */
.kakao-fab { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px 12px 14px; border-radius: 999px; background: #FEE500; color: #191919; font-weight: 700; font-size: 14px;
  font-family: var(--sans); box-shadow: 0 8px 24px rgba(28,28,28,.2); transition: transform .15s, box-shadow .15s; }
.kakao-fab:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(28,28,28,.26); }

/* ════════════ RESPONSIVE ════════════ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 8px; padding: 56px 24px 80px; }
  .hero-copy { max-width: 100%; order: 2; }
  .hero-sub, .hero-chips, .hero-cta { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-chips { justify-content: center; }
  .hero-art { order: 1; margin-bottom: 8px; }
  .hero-mascot { width: min(62%, 280px); }
  .install-grid, .aud-grid { grid-template-columns: 1fr; }
  .play-card { grid-template-columns: 1fr; text-align: center; padding: 38px 26px; gap: 28px; }
  .play-copy > p { margin-left: auto; margin-right: auto; }
  .play-qr { order: -1; }
}
@media (max-width: 680px) {
  .nav-links { position: fixed; inset: 56px 12px auto 12px; flex-direction: column; align-items: stretch; gap: 4px;
    background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 10px; box-shadow: var(--shadow-2);
    transform-origin: top; transform: scaleY(.7); opacity: 0; pointer-events: none; transition: transform .2s, opacity .2s; }
  .nav-links.open { transform: scaleY(1); opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { text-align: center; }
  .nav-toggle { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; }
  .commands, .demo, .audience, .install, .faq { padding: 60px 0; }
  .only-mobile { display: inline; }
  .cmd-cards { grid-template-columns: 1fr; }
  .cmd-btns { grid-template-columns: 1fr; }
  .container { padding: 0 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-mascot { animation: none; }
  .cmd, .cmd-btn { animation: none; }
  * { scroll-behavior: auto; }
}